221361245

素因数分解:

$5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{179}}^1\times {\mathrm{397}}^1$

素因数の和:677

約数の個数: 32

約数和(自身を含む): 309484800

約数和(自身を除く): 88123555

約数列:

[1, 5, 7, 35, 89, 179, 397, 445, 623, 895, 1253, 1985, 2779, 3115, 6265, 13895, 15931, 35333, 71063, 79655, 111517, 176665, 247331, 355315, 497441, 557585, 1236655, 2487205, 6324607, 31623035, 44272249, 221361245]

約数ペア:

[(1, 221361245), (5, 44272249), (7, 31623035), (35, 6324607), (89, 2487205), (179, 1236655), (397, 557585), (445, 497441), (623, 355315), (895, 247331), (1253, 176665), (1985, 111517), (2779, 79655), (3115, 71063), (6265, 35333), (13895, 15931)]